49. In addition to the claimant, but subject to regulation 7 (consideration of revision before appeal), the following persons have the right of appeal under section 12(2) of the 1998 Act—
(a)any person appointed by the Secretary of State under regulation 56 (payments on death) of the Claims and Payments Regulations 2013 to proceed with the claim of a person who claimed benefit and subsequently died;
(b)any person appointed by the Secretary of State under regulation 57 (persons unable to act) of those Regulations to act on behalf of another;
(c)any person claiming personal independence payment on behalf of another under section 82(5) of the 2012 Act (terminal illness); and
(d)in the case of a decision under section 71ZB, 71ZG or 71ZH of the Administration Act to recover any amount paid by way of benefit, any person from whom such an amount is recoverable, but only if their rights, duties or obligations are affected by that decision.